package com.itheima.service;

import com.itheima.pojo.Member;

import java.util.List;
import java.util.Map;

public interface MemberService {
    //根据手机号查询会员
    public Member findByTelephone(String telephone);
    public void add(Member member);


    public List<Integer> findMemberCountByMonth(List<String> month);

    List<Map<String, Object>> findMemberSexCount();

    List<Map<String, Object>> findMemberAgeCount();
}
